/Engine/Source/Runtime/Engine/Public/Animation/AnimCurveTypes.h
Blend (A, B) using Alpha
template<typename AllocatorA, typename ElementTypeA, typename AllocatorB, typename ElementTypeB> void Lerp ( const [TBaseBlendedCurve](API\Runtime\Engine\Animation\TBaseBlendedCurve)< AllocatorA, ElementTypeA > & A, const [TBaseBlendedCurve](API\Runtime\Engine\Animation\TBaseBlendedCurve)< AllocatorB, ElementTypeB > & B, float Alpha )